Coming from a girl who grew up eating Bay Area dim sum and is a regular in LA - this is one of the only spots in Vegas where you can get decent dim sum and very reasonably priced.
I've been here many times and no, you do not come here for service, but you will get offered food quickly and they do have most dim sum items you can get at most dim sum locations.
We always get xiao mai, har gow, shrimp chow fun, the pan fried rice rolls with XO sauce, spare ribs, chive dumplings, and chicken feet. We usually keep our chill with the fried foods but I am a big fan of the fried footballs stuffed with meat and the fried crab claw with the mayo sauce.
It's always busy, however, they are extremely efficient and the table turnover is quick! It's about $15 a person. It's not SGV or the Bay but the quality is still good and fulfills my cravings when I have them.
Another plus is they do dim sum all day and have some cool specials that I hope to try in the future.